RE: User Agent-Runtime Settings
James Pulley
What do you think the user agent is used for in both vugen and your application?
From: LR-Loa...@googlegroups.com [mailto:LR-Loa...@googlegroups.com] On Behalf Of sathish Ram
Sent: Tuesday, March 12, 2013 6:21 AM
To: LR-Loa...@googlegroups.com
Subject: User Agent-Runtime Settings
All,
I recorded a script with IE as browser & protocol as "WEB(HTTP/HTML)", i did correlation and made sure script works fine. later i changed the "User Agent" to junk characters "abc" in custom user agent of browser emulation section & then i re-run it on vugen. it worked fine. My Question here is, i entered invalid user agent, even then how it worked fine?
Thanks and Regards
Sathish Asokan
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James Pulley
browser will be executed on the client, only how the virtual user will
announce itself to the server. You could just as easily put in "Windows
2017; .Net 18.7; IE 15 Engineering Alpha - do not use on public
Internet; Hi Bob, this is Sathish. You can ignore this as we are
running a performance test against the production server."
The server may, depending upon the developers, elect to present a
distinct form of the website based upon the user agent string. This is
commonly how sites shift users to a mobile site, based upon the presence
of a user agent string or how sites which generate HTML on the fly for
users distinguish between generating w3c standardized HTML/XHTML/... for
the response or a dialect which will render the expected way on an IE
client. So, if the developer encounters a browser type that they were
not expecting, which is really pretty common given the number, version,
type and extensions installed on browsers, most pretty well ignore it
unless a specific version of a browser with a particular extension is
called for in which case an error is usually thrown back to the user to
use the appropriate browser and to install the appropriate extension
required.
References:
http://www.useragentstring.com/pages/useragentstring.php
http://www.zytrax.com/tech/web/browser_ids.htm
https://developer.mozilla.org/en-US/docs/Browser_Detection_and_Cross_Browser_Support
http://www.zytrax.com/tech/web/mobile_ids.html
Suggested reading, "PHP & MySQL for Dummies" (I own a copy of this
book). This should help to ground the use of the user agent string and
where and why it is used (if at all).
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Foundation Skills: Web Development, Web Architecture
James Pulley
http://www.loadrunnerbythehour.com/PricingMatrix
> On Wed, 2013-03-13 at 03:31 -0700, sathish Ram wrote:
> > James,
> >
> > Correct me if I am wrong. As per my knowledge, user agent is one which
> > is used to emulate browser, it means type of browser, version of it,
> > compatible on which operating system. Each browser (IE/Firefox) has
> > its defined user agent based on operating system
> >
> > I thought when we execute Vuser script, it will check the value of
> > user agent and based on that, it will emulate a browser which will be
> > used to access the application, so when we give some junk “abc” which
> > is not an user agent for any browser type, how can it emulate it?
> >
> > Waiting to hear from your side
> >
> > Thanks
> >
> > On Tuesday, March 12, 2013 9:02:24 AM UTC-4, James Pulley wrote:
> > What do you think the user agent is used for in both vugen and
> > your application?
> >
> >
> >
> > From: LR-Loa...@googlegroups.com
> > [mailto:LR-Loa...@googlegroups.com] On Behalf Of sathish Ram
> > Sent: Tuesday, March 12, 2013 6:21 AM
> > To: LR-Loa...@googlegroups.com
> > Subject: User Agent-Runtime Settings
> >
> >
> >
> >